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lite-xl
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First working implemention 

Cleanup also debug messages
This commit is contained in:
Francesco Abbate 2021-04-23 14:54:25 +02:00
parent 685b8c82d0
commit 33fe7295c0
4 changed files with 50 additions and 85 deletions
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6
src/api/system.c
View File

@ -109,9 +109,11 @@ top:
case SDL_WINDOWEVENT:
if (e.window.event == SDL_WINDOWEVENT_RESIZED) {
int w = e.window.data1, h = e.window.data2;
ren_resize(w, h);
lua_pushstring(L, "resized");
lua_pushnumber(L, e.window.data1);
lua_pushnumber(L, e.window.data2);
lua_pushnumber(L, w);
lua_pushnumber(L, h);
return 3;
} else if (e.window.event == SDL_WINDOWEVENT_EXPOSED) {
rencache_invalidate();

5
src/main.c
View File

@ -125,9 +125,6 @@ int main(int argc, char **argv) {
window = SDL_CreateWindow(
"", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, dm.w * 0.8, dm.h * 0.8,
SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_HIDDEN);
fprintf(stderr, "New window: %p\n", window); fflush(stderr);
init_window_icon();
ren_init(window);
@ -203,7 +200,7 @@ init_lua:
}
lua_close(L);
SDL_DestroyWindow(window);
ren_free_window_resources();
return EXIT_SUCCESS;
}

121
src/renderer.c
View File

@ -66,26 +66,17 @@ static const char* utf8_to_codepoint(const char *p, unsigned *dst) {
}
static SDL_Surface *get_window_surface(SDL_Window *this_window) {
int w, h;
// fprintf(stderr, "get_window_surface: %p\n", this_window); fflush(stderr);
SDL_GL_GetDrawableSize(this_window, &w, &h);
// FIXME: check for errors ?
if (window_surface && w == window_w && h == window_h) {
fprintf(stderr, "get_window_surface: return current surface: %p\n", window_surface); fflush(stderr);
return window_surface;
}
static void init_window_surface() {
if (window_surface) {
fprintf(stderr, "going to free: %p\n", window_surface); fflush(stderr);
SDL_FreeSurface(window_surface);
}
window_surface = SDL_CreateRGBSurfaceWithFormat(0, w, h, 24, SDL_PIXELFORMAT_BGR24);
SDL_GL_GetDrawableSize(window, &window_w, &window_h);
window_surface = SDL_CreateRGBSurfaceWithFormat(0, window_w, window_h, 32, SDL_PIXELFORMAT_BGRA32);
ren_set_clip_rect( (RenRect) { 0, 0, window_w, window_h } );
}
fprintf(stderr, "NEW surface: %p, size: %d %d\n", window_surface, w, h); fflush(stderr);
window_w = w;
window_h = h;
static SDL_Surface *get_window_surface() {
return window_surface;
}
@ -120,44 +111,56 @@ void ren_cp_replace_add(CPReplaceTable *rep_table, const char *src, const char *
rep_table->size = table_size + 1;
}
void ren_free_window_resources() {
SDL_DestroyWindow(window);
SDL_DestroyRenderer(window_renderer);
SDL_DestroyTexture(window_texture);
window = NULL;
window_renderer = NULL;
}
static void setup_renderer(int w, int h) {
/* Note that w and h here should always be in pixels and obtained from
a call to SDL_GL_GetDrawableSize(). */
if (window_renderer) {
SDL_DestroyRenderer(window_renderer);
SDL_DestroyTexture(window_texture);
}
window_renderer = SDL_CreateRenderer(window, -1, 0);
// May be we could use: SDL_CreateTextureFromSurface(sdlRenderer, mySurface);
window_texture = SDL_CreateTexture(window_renderer, SDL_PIXELFORMAT_BGRA32, SDL_TEXTUREACCESS_STREAMING, w, h);
}
void ren_init(SDL_Window *win) {
assert(win);
window = win;
SDL_Surface *surf = get_window_surface(window); //SDL_GetWindowSurface(window);
fprintf(stderr, "New surface %p\n", surf); fflush(stderr);
ren_set_clip_rect( (RenRect) { 0, 0, surf->w, surf->h } );
init_window_surface();
}
void ren_resize(int w, int h) {
int new_w, new_h;
SDL_GL_GetDrawableSize(window, &new_w, &new_h);
/* Note that (w, h) may differ from (new_w, new_h) on retina displays. */
if (new_w != window_h || new_h != window_h) {
init_window_surface();
setup_renderer(new_w, new_h);
}
}
void ren_update_rects(RenRect *rects, int count) {
#if 0
SDL_UpdateWindowSurfaceRects(window, (SDL_Rect*) rects, count);
#endif
fprintf(stderr, "ren_update_rects\n"); fflush(stderr);
static bool initial_frame = true;
if (initial_frame) {
int w, h;
SDL_ShowWindow(window);
SDL_GL_GetDrawableSize(window, &w, &h);
setup_renderer(w, h);
initial_frame = false;
}
int w, h;
SDL_GL_GetDrawableSize(window, &w, &h);
if (window_renderer && (w != window_w || h != window_h)) {
SDL_DestroyTexture(window_texture);
SDL_DestroyRenderer(window_renderer);
window_renderer = NULL;
}
if (!window_renderer) {
window_renderer = SDL_CreateRenderer(window, -1, 0);
// SDL_CreateTextureFromSurface(sdlRenderer, mySurface);
window_texture = SDL_CreateTexture(window_renderer, SDL_PIXELFORMAT_BGR24, SDL_TEXTUREACCESS_STREAMING, w, h);
fprintf(stderr, "got new renderer and texture: %p %p\n", window_renderer, window_texture); fflush(stderr);
}
// FIXME: we ignore the rects here.
SDL_UpdateTexture(window_texture, NULL, window_surface->pixels, window_w * 3);
SDL_UpdateTexture(window_texture, NULL, window_surface->pixels, window_w * 4);
SDL_RenderCopy(window_renderer, window_texture, NULL, NULL);
SDL_RenderPresent(window_renderer);
}
@ -172,7 +175,7 @@ void ren_set_clip_rect(RenRect rect) {
void ren_get_size(int *x, int *y) {
SDL_Surface *surf = get_window_surface(window); //SDL_GetWindowSurface(window);
SDL_Surface *surf = get_window_surface(window);
*x = surf->w;
*y = surf->h;
}
@ -331,9 +334,6 @@ void ren_draw_rect(RenRect rect, RenColor color) {
x2 = x2 > clip.right ? clip.right : x2;
y2 = y2 > clip.bottom ? clip.bottom : y2;
// fprintf(stderr, "ren_draw_rect: clipped rect: (%d, %d) (%d, %d)\n", x1, y1, x2, y2);
// SDL_Surface *surf = SDL_GetWindowSurface(window);
SDL_Surface *surf = get_window_surface(window);
RenColor *d = (RenColor*) surf->pixels;
d += x1 + y1 * surf->w;
@ -346,41 +346,6 @@ void ren_draw_rect(RenRect rect, RenColor color) {
}
}
// FIXME: this function is never used
#if 0
void ren_draw_image(RenImage *image, RenRect *sub, int x, int y, RenColor color) {
if (color.a == 0) { return; }
int n;
if ((n = clip.left - x) > 0) { sub->width -= n; sub->x += n; x += n; }
if ((n = clip.top - y) > 0) { sub->height -= n; sub->y += n; x += n; }
if ((n = x + sub->width - clip.right ) > 0) { sub->width -= n; }
if ((n = y + sub->height - clip.bottom) > 0) { sub->height -= n; }
if (sub->width <= 0 || sub->height <= 0) {
return;
}
/* draw */
SDL_Surface *surf = get_window_surface(window); //SDL_GetWindowSurface(window);
RenColor *s = image->pixels;
RenColor *d = (RenColor*) surf->pixels;
s += sub->x + sub->y * image->width;
d += x + y * surf->w;
int sr = image->width - sub->width;
int dr = surf->w - sub->width;
for (int j = 0; j < sub->height; j++) {
for (int i = 0; i < sub->width; i++) {
*d = blend_pixel2(*d, *s, color);
d++;
s++;
}
d += dr;
s += sr;
}
}
#endif
static int codepoint_replace(CPReplaceTable *rep_table, unsigned *codepoint) {
for (int i = 0; i < rep_table->size; i++) {
@ -399,7 +364,7 @@ void ren_draw_text_subpixel(RenFont *font, const char *text, int x_subpixel, int
{
const char *p = text;
unsigned codepoint;
SDL_Surface *surf = get_window_surface(window); // SDL_GetWindowSurface(window);
SDL_Surface *surf = get_window_surface(window);
const FR_Color color_fr = { .r = color.r, .g = color.g, .b = color.b };
while (*p) {
FR_Color color_rep;

3
src/renderer.h
View File

@ -36,9 +36,11 @@ typedef struct CPReplaceTable CPReplaceTable;
void ren_init(SDL_Window *win);
void ren_resize(int w, int h);
void ren_update_rects(RenRect *rects, int count);
void ren_set_clip_rect(RenRect rect);
void ren_get_size(int *x, int *y);
void ren_free_window_resources();
RenImage* ren_new_image(int width, int height);
void ren_free_image(RenImage *image);
@ -53,7 +55,6 @@ int ren_get_font_subpixel_scale(RenFont *font);
int ren_font_subpixel_round(int width, int subpixel_scale, int orientation);
void ren_draw_rect(RenRect rect, RenColor color);
void ren_draw_image(RenImage *image, RenRect *sub, int x, int y, RenColor color);
void ren_draw_text(RenFont *font, const char *text, int x, int y, RenColor color, CPReplaceTable *replacements, RenColor replace_color);
void ren_draw_text_subpixel(RenFont *font, const char *text, int x_subpixel, int y, RenColor color, CPReplaceTable *replacements, RenColor replace_color);